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Posted to issues@spark.apache.org by "Reza Zadeh (JIRA)" <ji...@apache.org> on 2015/04/05 11:02:33 UTC

[jira] [Created] (SPARK-6713) Iterators in columnSimilarities to allow flatMap spill

Reza Zadeh created SPARK-6713:
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             Summary: Iterators in columnSimilarities to allow flatMap spill
                 Key: SPARK-6713
                 URL: https://issues.apache.org/jira/browse/SPARK-6713
             Project: Spark
          Issue Type: Improvement
          Components: MLlib
            Reporter: Reza Zadeh


We should use Iterators in columnSimilarities to allow flatMap to spill to disk. This could happen in a dense and large column - this way Spark can spill the pairs onto disk instead of building all the pairs before handing them to Spark.



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